Update algolia-search-scripts.html (mmistakes#3102)

Fix issue mmistakes#3101

Author: FavorMylikes

_includes/search/algolia-search-scripts.html

@@ -19,8 +19,9 @@
 
 const hitTemplate = function(hit) {
   const url = hit.url;
-  const title = hit._highlightResult.title.value;
-  const content = hit._highlightResult.html.value;
+  const hightlight = hit._highlightResult;
+  const title = hightlight.title && hightlight.title.value  || "";
+  const content = hightlight.html && hightlight.html.value  || "";
 
   return `
     <div class="list__item">